Orthodontics, Adelaide Dental School, The University of Adelaide, Adelaide, South Australia, Australia.
Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School, The University of Adelaide, Adelaide, South Australia, Australia.
Community Dent Oral Epidemiol. 2019 Jun;47(3):210-216. doi: 10.1111/cdoe.12446. Epub 2019 Jan 17.
To assess the influence of orthodontic treatment on long-term caries experience in 30-year-old South Australians. The research hypothesis that was tested was that those with previous orthodontic treatment would have lower caries experience.
In 2005-2006, a sample of 1859 30-year-olds from Adelaide, South Australia, who comprised 47% of participants who had previously taken part in an oral epidemiology study in 1988-1989, were traced from the Australian electoral roll and invited to participate in a cross-sectional study investigating long-term dental health outcomes. Participants completed a questionnaire that collected information on socio-demographic characteristics, dental health behaviours and receipt of orthodontic treatment. This was followed by clinical examination. The outcome variables were the summed decayed, missing and filled teeth (DMFT) score, and its individual components. Data were analysed using negative binomial regression.
The response rate for the questionnaire was 34% (n = 632). There were no systematic differences between those who were followed up and those who were not followed up. Clinical data for 448 participants were available for analyses, representing 24% of the originally contacted individuals. By the age of 30, over a third of participants had received orthodontic treatment. Regardless of initial malocclusion classification, orthodontically treated participants had a lower DMFT score at age 30 but this did not reach statistical significance. Adjusted models controlling for socio-demographic, dental health behaviour and malocclusion status showed no associations between orthodontic treatment and decayed (Exp B: 1.00, 95% CI: 0.72-1.40), missing (Exp B: 1.00, 95% CI: 0.59-1.69), or filled teeth (Exp B: 1.18, 95% CI: 0.93-1.51) or overall DMFT (Exp B: 1.12, 95% CI: 0.88-1.41).
There was no difference in the long-term caries experience of South Australians aged 30 years based on past orthodontic treatment. Our study does not support the contention that those treated orthodontically have better dental health later in life.
评估正畸治疗对南澳大利亚 30 岁人群长期龋齿发病情况的影响。本研究检验的假设为:曾接受正畸治疗的人群龋齿发病情况更低。
2005 年至 2006 年,研究人员从澳大利亚选举名册中追踪到了 1859 名 30 岁的南澳大利亚阿德莱德居民,他们来自于此前参加过 1988 年至 1989 年口腔流行病学研究的人群,占比为 47%。这些居民被邀请参加一项横断面研究,以调查长期口腔健康结果。参与者完成了一份问卷,其中包含社会人口统计学特征、口腔健康行为和接受正畸治疗的信息。随后,对参与者进行了临床检查。结果变量包括总的龋齿、缺失和补牙(DMFT)评分及其各个组成部分。使用负二项回归对数据进行分析。
问卷的回复率为 34%(n=632)。随访者与未随访者之间没有系统差异。448 名参与者的临床数据可用于分析,占最初联系人数的 24%。到 30 岁时,超过三分之一的参与者接受过正畸治疗。无论最初的错颌畸形分类如何,接受过正畸治疗的参与者在 30 岁时的 DMFT 评分较低,但这没有统计学意义。调整了社会人口统计学、口腔健康行为和错颌畸形状况后,模型显示正畸治疗与龋齿(Exp B:1.00,95%CI:0.72-1.40)、缺牙(Exp B:1.00,95%CI:0.59-1.69)、补牙(Exp B:1.18,95%CI:0.93-1.51)或总体 DMFT(Exp B:1.12,95%CI:0.88-1.41)之间均无关联。
基于过去的正畸治疗,南澳大利亚 30 岁人群的长期龋齿发病情况无差异。我们的研究不支持正畸治疗可使患者终生保持更好口腔健康的观点。